Must be a problem with the US version of this player, or maybe the power network in US have to much noice and interference on it or something.
Anyway I have had this player since it came out on the market and it has never freezed up on me (not once in almost 7 years).

Don't waste your time! This is my second one...first one exhibited constant lock up and freezing after about 20 hours of use. Denon repaired under warranty...that lasted about a month. Finally got the store to replace it after much arguing. Well, the new one lasted about about 6 months (getting better). Same crap! This machine was obviously made for movies under an hour long...that's about how long it works!